One must of a table fan with such dimensions do not expect a powerful stream of air that ensures even in the greatest heat for optimum cooling. Can provide a remedy for such purposes probably only larger stand fans. Nevertheless makes "Zippi" with its nylon wings, which still have on stage 2 no risk of injury, for a pleasant, noticeably irregular airflow. So you feel not permanent the same airflow, but rather perhaps here or there an air flow, which comes across very refreshing. I have worried me the device for the office. There it is in a distance of about 50cm and is currently running, even if it is still not at the morning warm, 8 hours per day at level 1 through and makes a pleasant dynamic airflow to working much more enjoyable. The resulting vibrations are almost perfectly captured by the 5 rubber pads that are located on the frame. The "rotor" may be due to the construction of turn at a greater angle. Apart from the really very good overall processing and the hinge makes a very good and stable impression. The cable length of 1.5 m is not yet oversized more than adequate. That reminds me nothing else really serious negative strikes and me the design and the black piano paint like it very much, I can not recommend this 100%.
Perfect would be the device with a bit more power (even if it would thus louder) and an alternate USB port.